CN211747164U

CN211747164U - Mask capable of being sterilized

Info

Publication number: CN211747164U
Application number: CN202020224738.7U
Authority: CN
Inventors: 关义勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-10-27
Anticipated expiration: 2030-02-27

Abstract

The utility model discloses a gauze mask that can disinfection, its characterized in that: including protecgulum, filter core, back lid and colloid face guard sealing connection are in the same place, and have the gas pocket to make back lid and face guard communicate with each other, and the filter core is held in the centre by protecgulum and back lid clamp, and its edge is compressed tightly and forms sealedly, and protecgulum and back lid have the fore-set to form the support to the filter core towards filter core one side, make between protecgulum and the filter and form the air flow chamber between back lid and the filter core, and the protecgulum is last to have the gas pocket. The mask can be reused by replacing the filter element after high temperature and disinfectant disinfection, so that the service time is prolonged, and the environment safety problem does not exist when the mask is discarded. Meanwhile, the sealing performance is good, and the comfort is strong.

Description

Mask capable of being sterilized

Technical Field

The utility model relates to a mask capable of being sterilized, in particular to a mask capable of being repeatedly used for sterilizing high temperature, alcohol and the like, which is particularly suitable for epidemic situation protection.

Background

The mask is used as dust-proof, haze-proof and other particles and antibacterial and virus-proof protective articles, and has important significance for maintaining the health of human beings working and living in specific environments.

SARS in 2003, new coronavirus in late 2019 and early 2020, the demand for masks has increased dramatically, the production capacity cannot meet the actual demand, and the protection requirements for masks are much higher than those for dust masks.

Traditional gauze mask mainly has two kinds: 1. is a mask made of filtering and adsorbing fabric, and the main materials are cotton cloth, non-woven fabric and melt-blown fabric. The mask can be used for only a few hours at one time, for example, the use time of a common medical mask is 4 hours, the mask cannot be subjected to high-temperature and disinfectant disinfection treatment (the protection effect is obviously reduced after the treatment), and the mask belongs to a disposable mask. And is not easy to be directly discarded, and the medical mask needs to be subjected to harmless treatment according to requirements. 2. The main part is the silica gel face guard, and the front end has the cavity to hold removable filter core, but this kind of gauze mask is because the silica gel cover is ventilative, and cavity structural design is unreasonable again, and the filter core receives the pressure differential effect that the air resistance produced to easily attach in cavity one side during breathing, leads to the air permeability poor, consequently still need be provided with the check valve usually and exhausts, and some adoption fan force the taking a breath. However, in such a mask, there is a problem in sealing performance because the opening and closing of the check valve have a certain hysteresis. For the people infected by bacteria and viruses, the bacteria and the viruses in the respiratory airflow can be discharged into the air through the one-way valve, and the infection to other people can be caused. Therefore, the mask is suitable for dust prevention and is not suitable for patients and medical staff during epidemic situations.

The two traditional masks have the defects that the attaching tightness of the edge of the mask and the face, particularly the bridge of the nose, is not enough, although some metal strips are additionally provided with a piece of copper or aluminum, the edge of the mask is molded into a shape matched with the curved surface of the bridge of the nose through the deformation of the metal strips, the sealing effect is improved to a certain degree, the metal strips are made of soft materials according to the deformation requirement, the soft materials do not have enough elasticity or rigidity, so that the metal strips are tightly pressed at the transition positions of the two sides of the bridge of the nose and the face, and the problem of non-tight protection exists during epidemic.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gauze mask that repetitious usage that can disinfection, and do not need the check valve, sealed protecting effect is better.

The utility model relates to a gauze mask that can disinfection, including protecgulum, filter core, back lid and colloid face guard sealing connection are in the same place, and have the gas pocket to make back lid and face guard communicate with each other, and the filter core is held in the centre by protecgulum and back lid clamp, and its edge is compressed tightly to form sealedly, and protecgulum and back lid have the fore-set to form the support towards filter core one side, make between protecgulum and the filter core and form the air flow chamber between back lid and the filter core, and the protecgulum is last to have the gas pocket.

Furthermore, the top columns on the front cover and the top columns on the rear cover are arranged in a mode that the end parts of the top columns are located on an arc surface, the arc surface is the position of the column top and is not a solid arc surface, so that the filter element is supported to form an arc surface, and the filter element has a larger filtering area compared with a plane.

Further, the top pillars on the front cover and the top pillars on the rear cover are preferably arranged in a staggered manner.

Furthermore, the air holes in the front cover are a plurality of round holes which are arranged in a ring shape and a radial direction, and the top columns on the front cover are sheet-shaped and arranged on the inner wall of the front cover between the air holes arranged in the radial direction, so that the top columns also have a reinforcing effect.

Furthermore, fixed rings are arranged on two sides of the front cover, and a rope or an elastic band is arranged on the fixed rings.

Further, the air hole of the rear cover is a flow area not less than 2cm²The big air hole is connected with a central support column through a lacing wire in the middle of the air hole so as to prevent the filter element from being unsupported at the position and leading the edge sealing failure to be dragged towards the direction of the rear cover under the action of suction pressure.

Furthermore, the back of the back cover can be provided with a bulge surrounding the air hole of the back cover in a sealing connection mode of the back cover and the face cover, and the bottom surface of the face cover is provided with a connecting hole which is sleeved on the bulge part on the back of the back cover and is clamped by the bulge flange.

Further, the colloid face guard lateral wall has many vertical ribs, and the outside arc in face guard edge is turned up and thickness attenuation gradually, and vertical rib has certain compressive capacity, and the turn-ups of attenuation can closely and comfortable because of the big sense of touch of contact surface with facial laminating, is difficult for snatching the indentation at face.

Furthermore, the colloid face guard is water droplet shape, forms the nasal part that leans on the bridge of the nose at the point portion, and with the relative one side edge indent of nasal part to accord with human face shape, further strengthen sealed effect and comfort.

Furthermore, the rear cover and the face mask are made of silica gel and are of an integral structure.

The mask of the utility model can adopt silica gel or other elastic materials such as rubber, polyurethane and SBS elastomer. The front cover and the rear cover can be made of various materials such as plastics, metal, wood, carbon fiber and the like, can resist high temperature or disinfectant, and can be processed.

The utility model discloses a this kind of gauze mask that can disinfection handles, the filter core can be changed, and protecgulum, back lid and mask do not have the filter action, can adopt materials such as resin and silica gel respectively, can carry out disinfection treatment repeatedly through high temperature and disinfectant, consequently can used repeatedly many times, and the abandonment can not cause the potential safety hazard yet. And the front cover and the rear cover are used for fixing the filter element, so that the effective filtering area of the filter element is increased, the ventilation volume and the adsorption volume of particulate matters and bacteria viruses are increased, the service life of the filter element is longer, a one-way valve is not needed, the sealing effect is improved, the protective capability is improved, and the filter element is particularly suitable for bacteria, virus infectors and medical care personnel.

Drawings

FIG. 1 is a schematic view of the mask structure of the present invention capable of being sterilized;

FIG. 2 is a front view of the front cover;

FIG. 3 is a front view of the rear cover;

FIG. 4 is a front view of the mask;

FIG. 5 is a top view of FIG. 4;

fig. 6 is a schematic structural view of embodiment 2.

In the figure: 1. front cover, 2, filter core, 3, back lid, 4, face guard, 5, elastic band, 11, gas pocket, 12, fore-set, 13, solid fixed ring, 31, fore-set, 32, big gas pocket, 33, central fore-set, 34, lacing wire, 35, lug, 41, nose, 42, rib, 43, connecting hole.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments to help understanding the contents of the present invention.

As shown in figure 1, the utility model discloses a gauze mask that can disinfect has adopted assembled structure, including protecgulum 1, filter core 2, hou gai 3, silica gel face guard 4 and elastic webbing 5.

The front cover 1, as shown in fig. 1 and 2, is a circular plastic cover, which adopts an arc-shaped protrusion to increase the surface area, and is provided with a plurality of air holes 11 for air circulation, and a plurality of top pillars 12 are arranged on the inner surface, as shown in fig. 1, for supporting the filter element 2, so that the filter element cannot be attached to the front cover 1 due to the expiratory pressure during expiration, and an air flow cavity is formed between the front cover 1 and the filter element 2, so that the filtering area of the filter element can be fully utilized. In this embodiment, as shown in fig. 2, the air holes 11 are arranged in an annular and radial manner, and the top pillars 12 are arranged on the inner wall of the front cover between the radially arranged air holes 11 in a sheet manner, so as to reinforce the strength of the material between the air holes and improve the compressive deformation capability of the arc-shaped front cover 1. Correspondingly, as shown in fig. 1, the end of the top pillar 12 is also substantially located on an arc surface (a virtual non-solid arc surface, which refers to the relative position of the end of each top pillar) so that the filter element 2 forms an arc-shaped curved surface as shown in fig. 1, thereby increasing the filtering surface area, and improving the ventilation amount as well as the filtering and adsorbing amount of particulate matters, viruses and the like. In other embodiments, the arrangement of the air holes 11 may also be distributed in a crisscross grid pattern, or a triangular layout, and the shape of the top pillar 12 may be cylindrical, and the arrangement may also be different from that in fig. 2. As shown in fig. 2, fixing rings 13 are provided on both sides of the front cover 1, and are filled with elastic bands 5 made of silicone rubber or other rubber materials. The inner side of the front cover 1 is provided with a ring-shaped groove as shown in figure 1, so as to be inserted with the outer ring of the rear cover 3 to form a positioning.

The filter element 2 is mounted in a replaceable manner, and the peripheral edge of the filter element is pressed by the front cover 1 and the rear cover 3 to form a seal. The outer surface layer adopts non-woven fabrics, is a primary filter layer and has the function of separating particulate matters (dust, smoke), spray and other large granular matters in the air, the middle layer is a high-level filtering and adsorbing filter material such as melt-spraying cloth, and particularly reaches the BFE99 medical standard-level filter material, and 99% of filtering effect is realized through filtering, electrostatic adsorption and the like. The inner surface layer is medical PP non-woven fabric, and the respiratory resistance is less than 100 Pa. The filter element can also adopt filter elements with different structures and materials according to different requirements of application scenes, and can also be in a one-layer, two-layer or even four-layer structure.

The rear cover 3, as shown in fig. 1 and 3, has a large air hole 32 in the middle, and the flow area of the air hole is not smaller than 2cm²To guarantee the respiratory air flow, its surface is provided with a plurality of fore-posts 31 to withstand filter core 2 and do not make it paste and lean on the surface of lid 3 behind, form the air flow chamber between lid 3 and filter core 2 behind, improve the effective working area of filter core. Similarly, the top pillar 31 is also in the form of a sheet as shown in fig. 3, and the end of the top pillar 31 is also substantially located on a circular arc as shown in fig. 1, so that the filter element 2 forms a curved surface. The offset of the top columns 31 on the rear cover 3 and the top columns 12 on the front cover 1 can reduce the requirement of processing precision compared with the opposite mode, and due to the flexibility of the filter element material, the offset does not affect the supporting and positioning of the filter element 2, and the surface area is larger as the filter element 2 becomes more uneven. Because the area of the large air hole 32 is larger, a structure that three tie bars 34 are fixed with a central support column 33 is adopted, and the filter element 2 is supported from the middle part, so that the middle part of the filter element 2 is prevented from being pulled towards the direction of the rear cover when air is sucked. The rear cover rear face bulges outward around the atmospheric hole 32 and forms a flange for mounting the silicone cover 4. The front edge of the front cover is also provided with an annular groove to be embedded and positioned with an inner ring of the outer edge of the front cover 1. There are lugs 35 on both sides of the back cover 3 for the gripping operation. Since the outermost outer ring of the rear cover is inserted into the annular groove of the front cover 1 and the entire thickness of the rear cover itself is not large, the lugs 35 are provided to protrude from the front cover 1 for easy grasping.

The silica gel face mask 4, as shown in fig. 1 and 4, has a connection hole 43 on the bottom surface, as shown in fig. 1, the hole is used to cover the convex part on the back of the back cover 3 and is blocked by the convex flange, the periphery of the connection hole 43 adopts a thicker design to generate a larger elastic deformation amount in the thickness direction, so that when being blocked on the back cover, the silica gel face mask can be tightly attached to the surface of the back cover 3 and the side wall of the convex part to form effective sealing. When the mask is worn, the rear cover 3 is pressed on the silica gel face mask 4, and the elasticity of the material of the silica gel face mask 4 enables the combined surface of the two to have better sealing. The silicone mask 4 is in the shape of a water drop, a nose portion 41 which is attached to the bridge of the nose is formed at the tip portion, and as shown in fig. 5, one side edge opposite to the nose portion 41 is recessed to form a shape which is attached to the chin. As shown in figure 1, the outer edge of the silica gel mask 4 is turned outwards in an arc shape and becomes thinner gradually, the inner side wall is provided with the raised ribs 42, the axial direction of the mask has certain anti-pressure deformation capacity, the bottom of the mask (connected with the rear cover) can not be attached to the mouth under the action of the tensile force of the elastic belt, the edge is soft and has strong deformation force, the tensile force of the elastic belt 5 enables the edge of the mask 4 to be attached to the face of a person when the mask is worn, the contact area is large, good sealing is formed at the edge, and the comfort is strong.

Of course, in other embodiments, the silicone mask 4 may be bonded directly to the plastic back cover, without the use of bosses and with elastic nesting connections and seals, in order to improve the sealing effect.

The elastic band 5 is a silicone strip, and may be a tether, a cloth band, or the like.

The front cover 1 and the rear cover 3 can be assembled together through a buckle structure at the edge, or an L-shaped clamping groove is arranged on the front cover 1 corresponding to the lug 35 of the rear cover 3, and the connection and fixation can be realized only by buckling together and then rotating by an angle.

Of course, since the front cover 1 is pressed against the rear cover 3 by the tightening force of the elastic strip 5 when the mask is worn, the front cover 1 can be fastened to the rear cover 3 and the edge of the filter element 2 can be fixed and sealed even without any connecting structure for clamping the front cover 1 and the rear cover 3 together.

Example 2

As shown in fig. 6, in this embodiment, the rear cover 3 and the face mask 4 are of an integrated structure, that is, the rear cover 3 and the face mask 4 are made of an integrated silica gel material, the integrated structure reduces the sealing requirements of the rear cover 3 and the face mask 4, and due to the elasticity of the silica gel, the sealing between the front cover 1 and the rear cover 3 and the compression sealing of the edge of the filter element 2 are facilitated. The air holes and the center top pillar 33 are the same as those in example 1.

Claims

1. A mask capable of being sterilized is characterized in that: including protecgulum, filter core, back lid and colloid face guard sealing connection are in the same place, and have the gas pocket to make back lid and face guard communicate with each other, and the filter core is held in the centre by protecgulum and back lid clamp, and its edge is compressed tightly and forms sealedly, and protecgulum and back lid have the fore-set to form the support to the filter core towards filter core one side, make between protecgulum and the filter core and form the air flow chamber between back lid and the filter core, and the protecgulum is last to have the gas pocket.

2. The mask according to claim 1, which can be sterilized, comprising: the front cover surface adopts the arc arch, the fore-stock on the front cover and the fore-stock tip on the back lid are located an arc surface, make the filter core supported and form the arcwall face.

3. A mask capable of sterilization treatment according to claim 1 or 2, characterized in that: the top columns on the front cover and the back cover are arranged in a staggered mode.

4. A mask capable of sterilization treatment according to claim 1 or 2, characterized in that: the air holes in the front cover are a plurality of round holes which are arranged in an annular and radial mode, and the top columns in the front cover are in a sheet shape and are arranged on the inner wall of the front cover between the air holes which are arranged in the radial mode.

5. A mask capable of sterilization treatment according to claim 1 or 2, characterized in that: fixed rings are arranged on two sides of the front cover, and a rope or an elastic band is arranged on the fixed rings.

6. A mask capable of sterilization treatment according to claim 1 or 2, characterized in that: the air hole of the rear cover is a flow area not less than 2cm²The middle part of the air hole is connected with a central support column through a lacing wire.

7. A mask capable of sterilization treatment according to claim 1 or 2, characterized in that: the back of the back cover is provided with a bulge surrounding the air hole of the back cover, and the bottom surface of the mask is provided with a connecting hole which is sleeved on the bulge part at the back of the back cover and is clamped by the flange of the bulge.

8. A mask capable of sterilization treatment according to claim 1 or 2, characterized in that: the side wall of the colloid mask is provided with a plurality of vertical ribs, the edge of the mask is turned upwards in an outward arc shape, and the thickness of the mask is gradually reduced.

9. A mask capable of sterilization treatment according to claim 1 or 2, characterized in that: the colloid mask is in a water drop shape, a nose part which is attached to the nose bridge is formed at the tip part, and the edge of one side opposite to the nose part is concave inwards.

10. A mask capable of sterilization treatment according to claim 1 or 2, characterized in that: the back cover and the face mask are of a silica gel structure.